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A real advancement of our civilization must imply additional knowledge and increased altruism. A progressive evolution should mean a new and more comprehensive understanding of the truth, a more thorough realization of responsibility and opportunity, a more earnest desire for achievement, a more rational endeavor to secure definite results, and, at the same time, a more consistent appreciation of the value of exact justice. Man changes by virtue of development and environment, but the primitive impulses are subject to but slight modifications in the course of ages, and the animal part of his nature remains essentially what it has always been. This fact is not necessarily deplorable. No victory is possible without an adversary, no success is worthy without struggle.
BIRTH OF THE NEW HYGIENE.
Notwithstanding all philosophic inquiry, the great scheme of life still remains unknown and perhaps unknowable, but the accumulation of knowledge and experience makes possible a
LEWIS D. THE NEW HYGIENE.CHAIRMAN'S ADDRESS BEFORE THE SECTION ON HYGIENE AND SANITARY SCIENCE, AT THE FIFTY-SEVENTH ANNUAL SESSION OF THE AMERICAN MEDICAL ASSOCIATION, BOSTON, JUNE 5-8, 1906.. JAMA. 1906;XLVI(24):1813-1815. doi:10.1001/jama.1906.62510510005001a